go-tools/cmd/ev/app.msgbus.go

35 lines
686 B
Go

package main
import (
"context"
"fmt"
"go.sour.is/ev"
"go.sour.is/tools/app/msgbus"
"go.sour.is/ev/driver/projecter"
"go.sour.is/pkg/lg"
"go.sour.is/pkg/service"
"go.sour.is/pkg/slice"
)
var _ = apps.Register(50, func(ctx context.Context, svc *service.Harness) error {
ctx, span := lg.Span(ctx)
defer span.End()
span.AddEvent("Enable Msgbus")
eventstore, ok := slice.Find[*ev.EventStore](svc.Services...)
if !ok {
return fmt.Errorf("*es.EventStore not found in services")
}
eventstore.Option(projecter.New(ctx, msgbus.Projector))
msgbus, err := msgbus.New(ctx, eventstore)
if err != nil {
span.RecordError(err)
return err
}
svc.Add(msgbus)
return nil
})